[INFO] crate spaniel 0.1.0 is already in cache
[INFO] documenting spaniel-0.1.0 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate spaniel 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate spaniel 0.1.0 on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate spaniel 0.1.0
[INFO] finished tweaking crates.io crate spaniel 0.1.0
[INFO] tweaked toml for crates.io crate spaniel 0.1.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a37369efae495295eb66cdf61d19188c2a7f2f9abff8c7b631e36455e8422606
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a37369efae495295eb66cdf61d19188c2a7f2f9abff8c7b631e36455e8422606", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a37369efae495295eb66cdf61d19188c2a7f2f9abff8c7b631e36455e8422606", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a37369efae495295eb66cdf61d19188c2a7f2f9abff8c7b631e36455e8422606", kill_on_drop: false }`
[INFO] [stdout] a37369efae495295eb66cdf61d19188c2a7f2f9abff8c7b631e36455e8422606
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a827285d712063c24aafd4d9270a60c7b7e5b7bc0c5acc34d1461adc105ba60
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5a827285d712063c24aafd4d9270a60c7b7e5b7bc0c5acc34d1461adc105ba60", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking futures v0.1.29
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]  Documenting spaniel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/protocol/codec/writer.rs:127:58
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub fn buffer_data(&mut self, data: Bytes) -> Result<(usize), WriteError> {
[INFO] [stdout]     |                                                          ^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/protocol/codec/writer.rs:251:60
[INFO] [stdout]     |
[INFO] [stdout] 251 |     pub fn buffer_frame(&mut self, frame: Frame) -> Result<(usize), WriteError> {
[INFO] [stdout]     |                                                            ^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/protocol/codec/writer.rs:260:62
[INFO] [stdout]     |
[INFO] [stdout] 260 |     pub fn buffer_and_flush(&mut self, frame: Frame) -> Poll<(usize), WriteError> {
[INFO] [stdout]     |                                                              ^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.56s
[INFO] running `Command { std: "docker" "inspect" "5a827285d712063c24aafd4d9270a60c7b7e5b7bc0c5acc34d1461adc105ba60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a827285d712063c24aafd4d9270a60c7b7e5b7bc0c5acc34d1461adc105ba60", kill_on_drop: false }`
[INFO] [stdout] 5a827285d712063c24aafd4d9270a60c7b7e5b7bc0c5acc34d1461adc105ba60